한국추진공학회:학술대회논문집 (Proceedings of the Korean Society of Propulsion Engineers Conference)
- 한국추진공학회 2006년도 제27회 추계학술대회논문집
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- Pages.344-352
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- 2006
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- 1975-342X(pISSN)
고도모사용 초음속디퓨져의 정상 및 천이작동특성
Steady and Unsteady Operating Characteristics of Supersonic Exhaust Diffuser for Altitude Simulation
- 발행 : 2006.11.09
초록
Evacuation performance, starting transient, and plume blowback at diffuser breakdown of a straight cylindrical supersonic exhaust diffuser with no externally supplied secondary flow are investigated. Pressure records in the transitional periods are measured by a small-scale cold-gas simulator. Flow-fields evolving in the diffuser-type ejector are solved by preconditioned Favre-averaged Navier-Stokes equations with a low-Reynolds number